Apparatus for cooling and drying refrigerating or freezing rooms.



Patented May l5, I900.

c. w. VOLLMANN.

APPARATUS FOR COOLING AND DRYING REFRIGERATING OB FREEZING ROOMS.

(Application filed. Mar. 25, 1899.) (No Model.) 2 $heets8heei l.

witnesses gwuewlioz m: norms pzrzns co. Pnowuuwou wAsmuu'rori, n. c.

Patented May I5, I900.

0. w. VOLLMANN APPARATUS FOR COOLING AND DRYING REFRIGERATING OR FREEZING ROOMS.

(Application filed Mar. 25, 1899.)

2 Sheets-Sheet 2.

(No Model.)

wt 14 woes Rs (20.. no'ruumo, WASHINGT UNlTED STATES PATENT OFFICE.

CARL \VILIIELM VOLLMANN, OF MONTREAL, CANADA.

APPARATUS FOR COOLING AND DRYING REFRIGERATING OR FREEZING ROOMS.

SPECIFICATION forming part of Letters Patent No. 649,558, dated May 15, 1900.

Application filed March 25, 1899. fierial No. 710,503. (No model.)

To aZZ whom it may concern.-

Be it known that I, CARL WILHELM VOLL- MANN, of the city of Montreal, Province of Quebec, Canada, have invented certain new and useful Improvements in Apparatus for Cooling and Drying Refrigerating or Freezing Rooms; and I do hereby declare that the following is a full, clear, and exact description of the same.

This invention relates to means for cooling and drying rooms used for refrigerating or freezing purposes, and has for its object to simplify and improve same, whereby at a low initial cost for plant great efficiency and durability may be secured.

The invention consists of the construction and combination of parts substantially as hereinafter described, and pointed out in the claim.

For full comprehension, however, of the invention reference must be had to the annexed drawings, forming a part of this specification, in which like symbols indicate corresponding parts, and wherein Figure 1 is a vertical longitudinal section of the cooling apparatus and part of the building in which it is situated. Fig. 2 is a horizontal section of same on line 2 2, Fig. 1; and Fig. 3, an enlarged vertical transverse section on line 3 3, Fig. 1; Fig. 4, a detail sectional view of the upper end of a pair of the vertical cooling-plates and the horizontal distributing-plates between them.

a is the room to be cooled, and on the fioor above the cooling appliance proper is located and communicates with the room a through vents be in the flooring.

The cooling appliance is in the form of an oblong box or inclosure d, extending along the upper flooring and communicating at either end with the vents b 0, while within it is arranged a series of vertical metal plates 2, extending longitudinally thereof and with suflicient space between each to allow brine to fall between them. The plates 6 are spaced by sleeves f and held together by bolts g, threaded through such sleeves and eyes h in the plates, while horizontal perforated diaphragms j (of slightly less width than the spaces between the plates) are supported upon projectionst in such spaces near the upper edges of the plates to receive the brine, which falls from transverse overhead supply=gutters h, and direct it against the sides of the plates, through overflowing the edges of the diaphragms, and also in the form of spray through the perforations in the diaphragms. The brine is supplied to the gutters h from a tank or reservoir 7c (generally located in the basement of the building) through feed-pipes Z by pump m, and it is collected in an inclined pan n beneath the plates and returned to the tank through return-pipe o. The air is drawn from the room a and passed between the plates and through the brine-spray in the direction of the arrows by means of a fan p, located at one end of the cooling appliance and operated through suitable shaft-ing extending outside of the boxing d. As the liquid by running down the plates is coldest at the top, the warmest air is brought into contact with the coldest part of the liquid and plates and there fore rapidly cooled. At the same time the moisture of the air is absorbed by the cold liquid, and only cold and dry air leaves the cooling appliance and enters the room a,which is to be cooled, and by a continual transferring of the cold air to this room and taking up fresh moisture and heat therefrom the room becomes thoroughly cooled and dried.

What I claim is as follows:

Apparatus fordrying and cooling refrigerating or freezing rooms, consisting of a box d, located above the room to be dried and cooled, air-conductors b and c,communicating respectively one with each end of said box; a fan 19 located within the conductor 1); one or more transverse series of longitudinally-arranged vertical cooling-plates 6; bolts 9 and sleeves f oated below the room; a pump m; flow-pipes Z In testimony whereof I have affixed my sigconnecting said tank to said pump and said nature in presence of two witnesses. pump to said gutters; a collecting-pan n 10- T eated beneath said-series of plates; and a re- CARL WILHELM OLLMANN' 5 turn-pipe 0, connecting said pan to said tank, Witnesses:

substantially as described and for the pur- WILLIAM P. MOFEAT, pose set forth. FRED. J. SEARS. 

